"""Lightweight quality heuristics before or after standardization."""

from __future__ import annotations

from typing import Any

import numpy as np


def short_side_ratio(bgr: np.ndarray) -> float:
    h, w = bgr.shape[:2]
    if h <= 0 or w <= 0:
        return 0.0
    return float(min(h, w) / max(h, w))


def passes_quality(
    bgr: np.ndarray,
    *,
    min_short_side_ratio: float = 0.35,
) -> bool:
    """Reject extremely elongated crops / bad aspect (proxy for truncation)."""
    return short_side_ratio(bgr) >= min_short_side_ratio


def annotate_quality(row: dict[str, Any], bgr: np.ndarray, cfg_min_ratio: float) -> None:
    r = short_side_ratio(bgr)
    row["aspect_min_over_max"] = r
    row["quality_ok"] = r >= cfg_min_ratio